Cloud CX335 Посібник з монтажу та експлуатації - Сторінка 9
Переглянути онлайн або завантажити pdf Посібник з монтажу та експлуатації для Обладнання для запису Cloud CX335. Cloud CX335 15 сторінок. Compressor-limiter
Також для Cloud CX335: Посібник з монтажу (16 сторінок)
Друкувати сторінкуPage 8
1: Disconnect the unit from the mains.
2: Using a number 2 size pozidrive screwdriver, remove the six self-tapping screws retaining
the top panel of the unit.
3: Using a number 1 size pozidrive screwdriver, remove 4 M3 machine screws that retain the
main PCB to the bottom panel. These can be located:
3.1: Just behind the Threshold control
3.2: Directly behind the Gain Reduction display meter.
3.3: In front and to the rear of the grey encapsulated transformer block.
4: From the underside of the unit, remove the six self-tapping screws retaining the bottom
panel of the unit, using the number 2 pozidrive.
5a: If the unit is currently configured for 220-240 Volts AC, to the side of the transformer can
be found 1 zero Ohm link. This should be removed and two zero Ohm links should be fitted
to the positions marked 110-120 Volts. Go to paragraph 6.
5b: If the unit is currently configured for 110-120 Volts AC, to the side of the transformer can
be found 2 zero Ohm links. These should be removed and one zero Ohm link should be
fitted to the position marked 220-240 Volts.
6: Replace the power fuse with a correctly rated fuse for the new operating voltage.
7: Re-fit the two covers in the reverse order.
5
Compressors and Limiters Explained
5a
What is a compressor / limiter?
Compression is an audio process that reduces the output progressively once the input level
has risen above a pre-settable threshold. Once this threshold level is exceeded then the rate
at which the output is reduced is controlled by a predictable rate, called 'ratio'. Limiting is an
extension of compression where once the threshold is exceeded, the output level will not rise
any further. Therefore limiting can also be perceived as a compressor with its 'ratio' set
higher than 20 to 1.
5b
Threshold explained
As a rotary control, the threshold parameter is easy to understand. Threshold compares the
input level to the level set on the front panel. It is very common to see the graticule around
the threshold control marked from higher levels on the counter clockwise end to lower input
levels on the clockwise end. This is because more compression happens as the control is
turned 'up'.
15-07-02 V3
VIEW INSIDE CX335 SHOWING POSITION OF VOLTAGE SELECTION LINKS
FIT ONE
TRANSFORMER
LINK FOR
220/240
VOLTS
OPERATION
CX335: Installation and Operation Manual
FIT TWO
TRANSFORMER
LINKS FOR
110/120
VOLTS
OPERATION